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New size_mb_arg_with_percent is able to read size_mb_arg
but also it's able to read % values.
Percent parsing is share with int_arg_with_sign_and_percent.
If root has locales with different decimal point then '.'
(i.e. Czech with ',') lets be tolerant and retry with
"C" locales in the case '.' is found during parse of number.
Locales are then restored back.
Support compile type configurable defaults for creation
of sparse volumes.
By default now create 'thin-pools' for sparse volumes.
Use the global/sparse_segtype_default to switch back to old
snapshots if needed.
Apply the same compile logic for newly introduces mirror/raid1 options.
Use segment flags to avoid zeroing of cache, cache pool
snapshot and thin pool segments.
We never want to zero these segment types.
Note:
Snapshot COW and Cache origin are created as stripes
thus are then properly zeroed.
Let the finaly state of zero & wipe_signature to be
resolved later together with all the types.
Don't play with zero assigment and segtype flag
(i.e. thin-pool -Z has different meaning).
Check if the passed options do allow requested zeroing/wiping.
lvcreate without -Z or -W will fallback to warning if the device
cannot be zeroed, however if user requested them explicitely
it will give user error.
Refactor lvcreate code.
Prefer to use arg_outside_list_is_set() so we get automatic 'white-list'
validation of supported options with different segment types.
Drop used lp->cache, lp->cache and use seg_is_cache(), seg_is_thin()
Draw clear border where is the last moment we could change create
segment type.
When segment type is given with --type - do not allow it to be changed
later.
Put together tests related to individual segment types.
Finish cache conversion at proper part of lv_manip code after
the vg_metadata are written - so we could correcly clean-up created
stripe LV for cache volume.
We want to print smarter warning message only when
the zeroing was not provided on the first zeroable segment
of newly created LV.
Put warning within _should_wipe_lv function to avoid reevaluation
of same conditions twice.
Hide creation of temporary LVs and print them only in verbose mode.
e.g. hides confusing message about creation of _pmspare
device during creation of pool.
Ask for lock the proper LV.
Use the top-most LV to query for locally exclusive lock.
The rest of operations are then using 'lv_info()'
TODO:
Check all devices are reloaded from proper level.
In general any query on lv_is_active is supposed to be running
ona lv_lock_holder() volume.
Instead of segtype->ops->name() introduce lvseg_name().
This also allows us to leave name() function 'empty' for default
return of segtype->name.
TODO: add functions for rest of ops->
There was a bug in value and their synonym definition for these two fields
causing selections on these fields to not work correctly - nothing matched
against vg/lv_permissions fields even if selection criteria should have
matched.
Scenario:
$ lvs -o name,lv_permissions vg
LV LPerms
lvol0 read-only
lvol1 writeable
Before this patch:
$ lvs -o name,lv_permissions vg -S 'permissions=read-only'
(blank)
$ lvs -o name,lv_permissions vg -S 'permissions=writeable
(blank)
With this patch applied:
$ lvs -o name,lv_permissions vg -S 'permissions=read-only'
LV LPerms
lvol0 read-only
$ lvs -o name,lv_permissions vg -S 'permissions=writeable'
LV LPerms
lvol1 writeable
Also synonyms match correctly now:
$ lvs -o name,lv_permissions vg -S 'permissions=rw'
LV LPerms
lvol1 writeable
Fix lvm_split that is called when cmd line string is separated into
argv fields to recognize quote chars ('\'" and '"') properly and
when these quotes are used, consider the text within quotes as one
argument, do not separate it based on space characters inside.
The lvm_split is used during processing lvm shell command line or
when calling lvm commands through cmdlib (e.g. dmeventd plugins).
For example, the lvm shell scenario:
Before this patch:
$lvm
lvm> lvs --config 'global{ suffix=0 }'
Parse error at byte 9 (line 1): unexpected token
Failed to set overridden configuration entries.
With this patch applied:
$lvm
lvm> lvs --config 'global{ suffix=0 }'
LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert
root fedora -wi-ao---- 9.00g
swap fedora -wi-ao---- 512.00m
(Exactly the same problem is hit when calling LVM commands with
quoted arguments via lvm2cmd lib in dmeventd plugins.)
Bug https://bugzilla.redhat.com/show_bug.cgi?id=843587 is handled better
now - the hang does not occur anymore. There are still error messages
issued though during shutdown if someone stops lvm2-lvmetad.service
manually that lvm2-monitor.service depends on (even during shutdown).
These errors are correct though and will point to incorrect
configuration (still having use_lvmetad=1 in lvm.conf and stopping
lvm2-lvmetad.service manually).
The workaround to prevent the hang is not needed now. So the
'--config "global{use_lvmetad=0}"' is now removed from the
lvm2-monitor.service's ExecStop line.
Introduce pool function for validation of chunk size.
It's good idea to be able to reject invalid chunk size
when entered on command line before we open VG.
Move code to better locations.
Improve test and remove invalid ones
(i.e. no reason to require cache size to be >= then origin).
Correctly comment where the code is doing actual conversion
of other existing volume - we do already a similar thing with
external origins.
Lots of new command line options and combinations is now supported.
Hopefully older syntax still works as well.
lvcreate --cache --cachepool vg/pool -l1
lvcreate --type cache --cachepool vg/pool -l1
lvcreate --type cache-pool vg/pool -l1
lvcreate --type cache-pool --name pool vg -l1
... and many many more ...
Since _pmspare is internal volume move it to
lv_remove_single - so it's automatically removed with
last remove thin-pool.
lv_remove_with_dependencies() is not always used for pool removal.
--splitcache
Splits only cached LV (also pool could be specified).
Detaches cachepool from cached LV.
--split
Should be univerzal command to split various complex targets.
At this moment it knows cache.
--uncache
Opposite command to --cache. Detaches and DELETES cachepool for
cached LV.
Note: we support thin pool cached metadata device for uncaching.
Also use may specify wither cached LV or association cachepool device
to request split of cache.
Over the time lvcreate code has accumulated various hacks.
So try to move that code in right places.
Detect all types early in _lvcreate_params() so functions like
_read_size_params() do not need to change volume types.
Also ultimately respect give volume --type, that its shortcut
(-T, H, -m, -s) and after that options which do type estimation.
(i.e. --cachepool, --thinpool)
Avoid repeative tests - if we know all types are decode at once
place we can 'optimize' number of validations.
Split VG argument collection from processing.
This allows the two different loops through VGs to
be replaced by a single loop.
Replace unused struct cmd_vg and cmd_vg_read() replicator
code with struct vg and vg_read() directly.
[Committed by agk with cosmetic changes and tweaks.]
We use adjusted_mirror_region_size() in two different contexts.
Either on command line -
here we do want to inform user about reduction of size.
Or in pvmove activation context -
here we should only use 'verbose' info.
When requesting to reload an LV imrove this API to
automatically reload its lock holding LV as in cluster
only top-level LVs are addressable with lock.
When vg_ondisk is NULL we do not need to search
through the whole VG to find out the same LV.
NOTE: as of now - VG locking is not enabled as some code parts
are breaking memory locking rules (lvm2app).
Once we enforce VG locking for read-only commands the effect
will be much better for larger VGs.
Move common code for reading and processing
of --persistent arguments for lvcreate and lvchange
into lvmcmdline.
Reuse validate_major_minor() routine for validation.
Don't blindly activate LVs after change in cluster
and instead only local reactivation is supported.
(we have now many limited targets now).
Dropping 'sigint_caught()' handling, since
prompt() is resolving this case itself.
